B5 MOTONEURON

B5 is a neuron located on the dorsal surface of each buccal ganglia. It has a projection down the ipsilateral dorsal buccal nerve. The role of B5 is unknown. It is tonically active during periods of feeding quiescence. During feeding cycles B5 spikes become smaller and reduce in frequency during the protraction phase. B5 receives a large inhibitory input in the rasp phase due to N2v inhibition and then returns to tonic spiking during the late swallow phase.

References

Benjamin, P.R., Rose, R.M., 1979. Central generation of bursting in the feeding system of the snail, Lymnaea stagnalis. J Exp Biol 80, 93–118. https://doi.org/10.1242/jeb.80.1.93

Benjamin, P.R., Rose, R.M., Slade, C.T., Lacy, M.G., 1979. Morphology of Identified Neurones in the Buccal Ganglia of Lymnaea Stagnalis. Journal of Experimental Biology 80, 119–135. https://doi.org/10.1242/jeb.80.1.119

McCrohan, C.R., Benjamin, P.R., 1980. Synaptic relationships of the cerebral giant cells with motoneurones in the feeding system of Lymnaea stagnalis. J Exp Biol 85, 169–186. https://doi.org/10.1242/jeb.85.1.169

Vehovszky A, null, Elliott, C.J., 2001. Activation and reconfiguration of fictive feeding by the octopamine-containing modulatory OC interneurons in the snail Lymnaea. J Neurophysiol 86, 792–808. https://doi.org/10.1152/jn.2001.86.2.792